Does anyone know if the OE 19" 344M rear wheels clear '14 M6 Coupe carbon ceramic rear brake calipers? I measured just about .6" clearance (on the radius) from the wheel to the caliper on the OE 20" 343M, so it is going to be a toss up and would prefer having someone who has actually attempted it already? Not concerned about the front fitments and this is only a rear wheel question here.

Does anyone know if the OE 19" 344M rear wheels clear '14 M6 Coupe carbon ceramic rear brake calipers? I measured just about .6" clearance (on the radius) from the wheel to the caliper on the OE 20" 343M, so it is going to be a toss up and would prefer having someone who has actually attempted it already? Not concerned about the front fitments and this is only a rear wheel question here.

I don't have any physical experience but based on the part database...the 344 wheel style is not listed when you select YES for the S2NKA M Carbon ceramic brake option. If you select NO or ?...then #2 does appear: https://bimmercat.com/bmw/EN/search/...M6/USA/36_1731

If you click the link above...it will take you directly to the part database for the 344 wheel style...and item #2 is listed. But if you look at the upper right of the page and select for the ceramic brake option...you'll see that #2 is no longer listed...which means that the wheel doesn't fit if you have the ceramic brakes.

I don't have any physical experience but based on the part database...the 344 wheel style is not listed when you select YES for the S2NKA M Carbon ceramic brake option. If you select NO or ?...then #2 does appear: https://bimmercat.com/bmw/EN/search/...M6/USA/36_1731

If you click the link above...it will take you directly to the part database for the 344 wheel style...and item #2 is listed. But if you look at the upper right of the page and select for the ceramic brake option...you'll see that #2 is no longer listed...which means that the wheel doesn't fit if you have the ceramic brakes.

Thanks for the feedback. I'm afraid you are likely correct here, upon closer inspection it appears the clearance is closer to about .52" at some tighter points. So assuming the 343M is made to exact tolerances as the 344M (inner to inner diameter) my best guess is that they "may" still fit, but with ~ .5mm clearance it would be a bit of a risk and likely something that the OE's would never put their John Hancock on.

Thanks for the feedback. I'm afraid you are likely correct here, upon closer inspection it appears the clearance is closer to about .52" at some tighter points. So assuming the 343M is made to exact tolerances as the 344M (inner to inner diameter) my best guess is that they "may" still fit, but with ~ .5mm clearance it would be a bit of a risk and likely something that the OE's would never put their John Hancock on.

Rob

That's too bad, because I'd love to see large brakes completely fill the wheel space.